I n Y D S E , t w o t h i n t r a n s p a r e n t f i l m o f m i c a a n d g l a s s a r e p u t i n t h e p a t h o f t w o w a v e s f r o m c o h e r e n t s o u r c e s S 1 a r d S 2 . I f t h e i r t h i c k n e s s a r e 3 t a n d 2 t r e s p e c t i v e l y , w h a t s h o u l d b e r e f r a c t i v e i n d e x o f m i c a s o t h a t c e n t r a l m a x i m a i s f o u n d a t O ? ( μ g l a s s = 1 . 5 ) ( 1 ) 1 . 25 ( 2 ) 1 . 5 ( 3 ) 1 . 75 ( 4 ) 1 . 33 Share with your friends Share 7 Shobhit Mittal answered this Dear Student, if the central maxima is at O then the effective path difference must be zero .the distance S1O=S2O=xx-3t+μ3t=x-2t+1.52t-3+μ3=-2+3μ=43refractive index of micaoption 4Regards 5 View Full Answer